Glass waste heat boiler capable of improving denitration efficiency

Abstract

The invention discloses a glass waste heat boiler capable of improving denitration efficiency. The glass waste heat boiler comprises a flue gas pretreatment section, a denitration system, an ascendingsection and a descending section; the lower portion of the flue gas pretreatment section is provided with a flue gas pretreatment section inlet flue, a flue gas pretreatment section outlet flue at the upper portion of the flue gas pretreatment section is connected with the denitration system, and the denitration system is connected to the ascending section through an ascending section inlet flue;the ascending section and the descending section communicate with each other through a turning flue; the side edge of the descending section is provided with a descending section outlet flue; and atleast one set of smoke temperature adjustment module is arranged in the flue gas pretreatment section. According to the boiler, under variable load operation, introduced flue gas temperature is alwaysat the optimal denitration temperature, and efficient operation of the denitration system is facilitated; a connection mode of the flue gas pretreatment section and the denitration system shortens the connection stroke, the steel consumption is saved, the smoke resistance is reduced, and the energy consumption of a fan is reduced; and after flue gas treatment, clear water is used for washing theheated surface, long-term stable operation of the glass waste heat boiler system is facilitated, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of waste heat boiler equipment, in particular to a glass waste heat boiler that improves denitrification efficiency. Background technique [0002] The conventional glass waste heat boiler structure only includes an ascending section and a descending section. A superheater and a partial evaporator are arranged at the lower part of the ascending section, and a denitration flue is installed behind the evaporator to lead into the denitrification system. After denitration, it is introduced into the waste heat boiler again, so there are the following: Problems: First, the space of the conventional glass waste heat boiler is small, and the flue layout is difficult, which increases the consumption of steel and increases the cost; second, the denitrification flue is long and needs to be connected through multiple turns, resulting in a complex structure of the flue, large resistance, and the fan High energy consumptio...

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Problems solved by technology

[0002] The conventional glass waste heat boiler structure only includes an ascending section and a descending section. A superheater and a partial evaporator are arranged at the lower part of the ascending section, and a denitration flue is installed behind the evaporator to lead into the denitrification system. After denitration, it is introduced into the waste heat boiler again, so there are the following: Problems: First, the space of the conventional glass waste heat boiler is small, and the flue layout is difficult, which increases the consumption of steel and increases the cost; second, the denitrification flue is long and needs to be connected through multiple turns, resulting in a complex structure of the flue, large resistance, and the fan High energy consumption; third, the glass waste heat boiler usually washes the heating surface with clean water. Since the traditional denitrification flue is arranged in series up and down, with horizontal leads and horizontal leads, water is easy to accumulate in the flue and cannot be drained, which affects the stable operation of the system; , if the flue gas temperature fluctuates, the temperature of the flue gas entering the denitrification system is difficult to reach the optimal design value, which will affect the denitrification efficiency

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